I came to N-Flux to find a hobby and ended up finding a passion and a home away from home. Yes,…read moreit's a gym, and the new facility in the bottom level of 1722 I Street will blow your mind with all the new equipment and toys (no more stripper poles, just tons of mats, gloves, pads and other goodies). But more importantly, this place is a community. N-Flux has the best instructors and classes you will find anywhere in DC if you're interested in taking Krav Maga, Jiu Jitsu, Boxing, and all sorts of other martial arts and combat sports. Chris and Colleen are the best instructors I've ever seen. They don't just want you to get skills, they teach concepts, conditioning, and character. Part of the training is how to be a good classmate, and experienced students help newer students and welcome new people. As a result, you're not just coming for a workout, you walk away welcomed and encouraged to be the best you can be -in everything. The classes are challenging in the best way, even their Yoga classes (and I hated yoga before I took N-Flux yoga with the amazing Scott and Maicie!). Chris and Colleen are tough and push you to be your best. Since starting, I've lost 25 pounds, gained 25 new friends, and according to my work colleagues, "am the happiest I've ever been." This place is way more than a gym and you won't know what you're missing until you come try it for yourself.

If you are into Krav Maga, then this is the place for you. It is a small studio on the top floor of…read morea small building that is only accessible by way of a small elevator. But once inside it does not feel small at all. As a matter of fact you forget everything other than the class as even the beginner classes are intense. You come here to learn to fight and defend yourself. It's intense, it hard, and sometimes it hurts. But if you want to sweat, get a hell of a workout and kick some ass, then this is the place to be.

The class was excellent. I really appreciate the verbal part. Then I appreciate the physical. Both…read moreof them are a excellent tool to have. Yours truly, Nancy Boyd

I have taken both Women's Basic Self Defense and Beyond Basics. The classes are small, so you get…read morea lot of individual attention. You train full force, so you won't pull your punches in an actual altercation. You learn simple techniques that anyone can do, and you learn a mental state that allows you to function in a scary adrenalized situation. Possibly the most important thing you learn is to consciously present yourself as trouble to a would be assailant. This isn't traditional martial arts - it isn't spiritual discipline, it is a down and dirty way to end a fight fast. I recommend this to all the women I know.

My teenage daughter and I were looking for a physical activity we could do together, and liked the…read moreself-defense benefit that Krav Maga could add. We had never taken a class, but I had read about CDK Krav Maga and we decided to give it a try. It was a great decision (especially as we have tried many different types of classes). We met with the owner DJ who took real time with us -- listening to our goals and explaining how Krav Maga builds confidence and practical self-defense skills, especially for women. We took a complementary class. Everyone made us feel so comfortable. The classes are instructional, not competitive, and people go at their own pace, which is something we also liked. The instructors are great. David worked with us initially and was knowledgeable and encouraging. DJ's wife Emma made the onboarding process so easy and welcoming. They were also incredibly flexible in helping us find a class schedule that worked for our busy lives. If you're interested in Krav Maga, CDK is a great place.

I had an uncomfortable experience with the sales process here and think it's important for others…read moreto know what to expect. The pricing was not transparent; I was quoted $200/month over the phone, but in person, the price jumped to $270/month plus a $200 initiation fee. When I asked to try a class before committing, I was told that wasn't possible. The meeting focused heavily on "closing the deal" that day, using high-pressure tactics. Most concerningly, when I asked about the schedule for female instructors, the tone shifted and I was asked, "Why are you asking that?" It felt like a dismissive response to a reasonable question about a training environment. The salesperson also disparaged other local gyms, which felt unprofessional. In an activity where physical vulnerability and trust are key, this environment felt neither transparent nor supportive.

I signed up for the conceal carry class on Groupon. I then signed up for range sessions with Keith…read moreJordan. The Trouble Defense team is very professional! Sheena is very responsive to schedule sessions and Keith is very patient. He has a very calm teaching style that made me feel very comfortable. Since my training, I am more educated on self-defense laws, have my conceal carry training certificate and feel comfortable going to the range by myself to shoot my personal firearm. The instructor helped me choose my first firearm that I fit my needs. I recommend Trouble Defense to anyone. From individuals not comfortable with firearms to experienced people that want to sharpen their skills. As a result of my awesome experience, I plan to continue to use their services!

I highly recommend! The instructors are phenomenal! They are very knowledgeable, professional ,…read morefamily oriented, and friendly. They were able to answer all of my questions and helped me face my fears. Not only were they kind but they were extremely patient with me. They made sure I was comfortable and guided me every step of the way. If you are looking for firearm training, safety seminars, etc; Trouble Defense is the place to go!

Great new facility to get self defense training, survival training, and fitness. I love training…read morehere and Don is an excellent instructor.

Anvil is the best place to train! I have always felt safe, challenged and inspired when working…read morewith this team. You will leave your first class with skills that are ready for use in the real world. This is unlike any other gym in that you'll get all of your survival skills in one place. You'll get a great workout, have fun and leave with useful skills. Do yourself a favor and check them out!

Having trained under for Jeff for over a year in various self-defense practices, I cannot recommend…read morehis services highly enough. The lessons and teaching are individualized, well-paced, and of top quality that is unequaled by other self-defense trainers, gyms, etc. in the area. Further, Jeff takes the time to get to know you and your specific needs, situation, etc. Not only does this help him optimize training plans for you, it ensures that you leave each training session with something relevant and practical that you can use in your day to day, even if this means having a plan (that you'll hopefully never have to use) if **** hits the fan. His self-defense training provides the confidence to feel secure and prepared. I am sure that his strength & nutrition services offer similar experiences.

A legit privilege to have a Navy SEAL patiently impart his technical expertise and philosophical…read moreguidance to a humble civilian. He taught me the fundamentals of an amazing edge weapons system- MBC, Martial Blade Concepts...an ideal methodology for me. I will also look to his tutelage and training for firearms and effective home defense. This fella is the real deal, bar none.

Small intimate setting for self-defense training by an expert in the field. Highly recommend him…read moreand his staff. Very matter-of-fact with out pretending they can tell you what DA's or lawyers will do, as Vinny will tell you, he is not a lawyer, but has the decades of experience in executive protection and military experience in self-defense to tell you what you should say, have, and do to maximize your safety, responses to threats, and minimize your risks. Just took a class there last night on defending the home. Afterwards he let us see & use the laser room, and Airsoft training room. I watched him and his staff give some quick basic instruction to a few people. Very impressed. Did not take pictures. Wish I had.

Vinny was very informative and knowledgeable. A true expert in the field. His class was very…read moreengaging and he kept things interesting. I would strongly recommend his services to anyone. Thanks Vinny!

Real-world self-defense is CLEARLY a passion for all the instructors here. I appreciate when the…read moreinstructor says that he's not teaching us "THE WAY," he's teaching us "A WAY." Everyone's body and skills are so different, and these instructors fully embrace that. Their goal in Krav Maga is not to teach us pretty kicks and impressive moves - their goal is to make sure we get home to our loved ones safely. It is all about developing your mindset, muscle memory, and instincts so that, when it really counts, you avoid the deer-in-headlights effect. Even as a beginner, I feel like I walk around my community in Manassas with more confidence and awareness and have learned how to reduce my chances of being a victim in the first place. If for some reason you don't feel like you have the time to commit to classes, I HIGHLY recommend you check out their monthly seminars! Women's Self Defense, Edged Weapon Defense, Car Jacking Defense, and the list goes on!! After watching many of the kid's classes, I love what I see! They're teaching kids how to use their voice, how to stand up for themselves and when it is appropriate to take physical action.

Amazing experience- went for an hour and a half class for moms and daughters. The instructors were…read moreincredible, the atmosphere was friendly and inviting. I left feeling so much more confident in protecting myself. I had so much fun I'm going to sign up for the adult class! Highly recommend for adults and especially kids - the tactics you learn could save your life and it was interactive and super fun great workout on top of it as icing on the cake DEFINITELY at least go once to experience it yourself you won't be disappointed!

Awesome program available for kids 4 days weekly, amazing instructors, very friendly, helpful,…read morerespectful and dedicated! Proper training and protective equipment is also available. Thank you for everything you do!

I visited Kore Krav Maga last year for a week of instructor training, and I was totally impressed…read moreby the way that the McCrackens run their school. First thing I noticed is that everything is clean, which is really important when you're training in close contact with people, and especially if you ever do any training on the ground. Next, I noticed how friendly all of the students and instructors were. The culture of the place is very welcoming. I can be a bit shy at first, so having people go out of their way to say hello and show me around was pretty great. Lastly, I want to mention the huge amount of knowledge the instructors bring to their students. For instance, the lead instructor, Tammy McCracken, is the Director of the US Women's Division for Krav Maga Global, and she's constantly going to seminars and conferences and the like to learn more about how people can defend themselves. They have created an environment where all people, regardless of size/age/ability, can train together and not feel awkward or like they don't belong. The benefits of making this your regular gym can't be understated - fitness, self defense, friendship, empowerment... the list just keeps going. Love this place!